Models of Earth Answers

Which statements accurately describe hot spots? Check all that apply.Hot spots can cause volcanoes.Hot spots can cause geothermal activity like geysers and mud pots.The Hawaiian Islands formed over a hot spot.Hot spots occur only at plate boundaries.Yellowstone National Park is a geothermal hot spot.

As magma rises, pressure , causing dissolved gases to expand and form bubbles. The size of the bubbles increases, exerting a lot of force. The force of the expanding gases pushes the magma from the up through the . Molten rock and gas explode through the , which is at or near the top of the volcano.